Varistor Metal Oxide Varistor Products Page 195 Varistor Metal-Oxide Varistor Products

2017 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 09/14/17 Metal-Oxide Varistors (MOVs) Industrial High Energy Terminal Varistors > DHB34 Series Reflow Condition Pb - Free assembly Pre Heat - Temperature Min (Ts(min)) 150C - Temperature Max (Ts(max)) 200C - Time (min to max) (ts) 60 - 180 secs Average ramp up-rate (Liquidus Temp (TL) to peak 5C/second max TS(max) to TL - Ramp-up Rate 5C/second max Reflow - Temperature (TL) (Liquidus) 217C - Temperature (tL) 60 - 150 seconds Peak Temperature (TP) 250 +0/-5 C Time within 5C of actual peak Temperature (tp) 20 - 40 seconds Ramp-down Rate 5C/second max Time 25C to peak Temperature (TP) 8 minutes Max. Do not exceed 260C Soldering Parameters Operating/Storage Temperature -55C to +85C/-55C to +125C Humidity Aging +85C, 85% RH, 1000 hours +/-10% Voltage change Thermal Shock +85C to -40C 5 times +/-10% Voltage change Solvent Resistance MIL-STD-202, Method 215 Moisture Sensitivity Level 1, J-STD-020 Lead Material Tin-coated Copper Soldering Characteristics Solderability per MIL-STD-202, Method 208 Insulating Material Cured, flame retardant epoxy polymer meets UL94V-0 requirements. Device Labeling Marked with LF, voltage, amperage rating, and date code. Physical Specifications Environmental Specifications Lead-free Profile Non Lead-free Profile 0 50 100 150 200 250 300 0 0.5 1 1.5 2 2.5 3 3.5 4 TIME(MINUTES) TEMPERATURE (C) Maximum Wave 240C 0 50 100 150 200 250 300 0 0.5 1 1.5 2 2.5 3 3.5 4 TIME(MINUTES) TEMPERATURE (C) Maximum Wave 260C Figure 5 Figure 6

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